Hi, sorry for this inconvenience! You probably have to delete your save file, since from the previous build it saved your game in the wrong language. To do this, close the game, go to the save location:

Thank you for the details and sorry for all the hassle! I updated the game so this problem should be fixed. Re-download the game and make sure your local save file is deleted before launching it. Let me know if you have any more issues!